EP 4148845 A1 20230315 - BATTERY CELL AND MANUFACTURING METHOD AND MANUFACTURING SYSTEM THEREFOR, BATTERY, AND POWERED DEVICE
Title (en)
BATTERY CELL AND MANUFACTURING METHOD AND MANUFACTURING SYSTEM THEREFOR, BATTERY, AND POWERED DEVICE
Title (de)
BATTERIEZELLE UND HERSTELLUNGSVERFAHREN UND HERSTELLUNGSSYSTEM DAFÜR, BATTERIE UND STROMGETRIEBENE VORRICHTUNG
Title (fr)
ÉLÉMENT DE BATTERIE, ET SON PROCÉDÉ DE FABRICATION ET SON SYSTÈME DE FABRICATION, BATTERIE ET DISPOSITIF ALIMENTÉ
Publication
Application
Priority
- CN 202110257260 A 20210309
- CN 2021135788 W 20211206
Abstract (en)
This application discloses a battery cell, a manufacturing method and manufacturing system of same, a battery, and an electric device. The battery cell of the embodiments of this application includes an electrode assembly; a housing configured to accommodate the electrode assembly and having an opening; an end cover configured to close the opening of the housing; and a current collecting member configured to electrically connect the electrode assembly to the end cover, where the current collecting member is at least partly located between the electrode assembly and the end cover and abuts against the electrode assembly; the current collecting member has a first hole, where the first hole is configured to accommodate part of the electrode assembly and make the electrode assembly contact a hole wall of the first hole. As the current collecting member abuts against the electrode assembly and is thus connected to the electrode assembly without welding, fewer metal particles are left in the battery cell, thereby decreasing risks of short circuit. As the electrode assembly partly extends into the first hole and contacts the hole wall of the first hole, a contact area between the current collecting member and the electrode assembly can be increased, thereby increasing the current flow capacity.
IPC 8 full level
H01M 10/04 (2006.01); H01M 50/586 (2021.01)
CPC (source: EP KR US)
H01M 10/04 (2013.01 - EP US); H01M 50/107 (2021.01 - EP KR); H01M 50/152 (2021.01 - KR US); H01M 50/528 (2021.01 - EP KR); H01M 50/533 (2021.01 - KR); H01M 50/536 (2021.01 - US); H01M 50/538 (2021.01 - EP KR); H01M 50/586 (2021.01 - KR); H01M 50/627 (2021.01 - EP KR); H01M 50/636 (2021.01 - US); H01M 2220/20 (2013.01 - EP KR US); H01M 2220/30 (2013.01 - KR); Y02E 60/10 (2013.01 - EP KR); Y02P 70/50 (2015.11 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4148845 A1 20230315; EP 4148845 A4 20240821; CN 115051120 A 20220913; CN 115051120 B 20240528; JP 2023524895 A 20230613; KR 20230004592 A 20230106; US 2023045904 A1 20230216; WO 2022188484 A1 20220915
DOCDB simple family (application)
EP 21929946 A 20211206; CN 202110257260 A 20210309; CN 2021135788 W 20211206; JP 2022569123 A 20211206; KR 20227039364 A 20211206; US 202217973811 A 20221026